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#pragma once
#include <list>
#include <string>
#include <utility>
#include <vector>
namespace search
{
/// Saves last search queries for search suggestion.
class QuerySaver
{
public:
/// Search request <locale, request>.
using TSearchRequest = std::pair<std::string, std::string>;
QuerySaver();
void Add(TSearchRequest const & query);
/// Returns several last saved queries from newest to oldest query.
/// @see kMaxSuggestCount in implementation file.
std::list<TSearchRequest> const & Get() const { return m_topQueries; }
/// Clear last queries storage. All data will be lost.
void Clear();
private:
friend void UnitTest_QuerySaverSerializerTest();
friend void UnitTest_QuerySaverCorruptedStringTest();
void Serialize(std::string & data) const;
void Deserialize(std::string const & data);
void Save();
void Load();
std::list<TSearchRequest> m_topQueries;
};
} // namespace search
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